Catalytic Combustion Modeling ANSYS Fluent

Catalytic Combustion Simulation of Methane by Wall Surface Reactions

Catalytic Combustion occurs at low temperature and it is a flameless process. Therefore, this process produces less nitrogen oxide. In addition, Modeling Catalyzed Combustion in ANSYS Fluent has potential applications in finding flammability limits and improving reactor design.

In this tutorial, we provide guidelines for modeling and simulation of catalyzed combustion of methane on a platinum surface.

You will also learn how to do the following through this tutorial:

Setting up the solver and solving catalyzed combustion problem

Setting up reactions and materials with CHEMKIN import

Apply appropriate solver settings

Also, post-process the resulting data

Problem Description Catalytic Combustion

Here, we model catalyzed combustion of methane, hydrogen, and air mixture. The simulation is performed on a heated platinum wall of a cylindrical channel. We employed 2D axisymmetric solver to simulate the cylindrical channel. Also, We use Two CHEMKIN mechanism files to perform the simulation. The first file has the definition of gaseous species, and the second file contains the definitions of surface species and surface reactions. We ignore the volumetric reactions on this problem. The model of the circular channel has three sections, 1.inlet, 2.catalytic, and 3.outlet. The catalyzed reactions occur on the wall surface of the catalytic section.

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